simultaneousness

• Существительное, обозначающее состояние или качество происходящего, существующего или выполняемого в одно и то же время.

A noun referring to the state or quality of happening, existing, or being done at the same time.

неисчисляемое

1. State of occurring at the same timeC1formal

   The quality or condition of events or actions happening at exactly the same moment.

   Одновременность

   • The simultaneousness of the two explosions suggested a coordinated attack.
   • The simultaneousness of their arrival was purely coincidental.
   • The conductor ensured the simultaneousness of all instruments in the orchestra.

   Синонимыcoincidenceconcurrencecontemporaneitysynchronicity

   Антонимыasynchronydesynchronization